<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			//--JavaScript
			var arr=[1,2,3,4,5,6];
			var res=arr.map(function(items,index,array){
				
				//itens 原始数组的值 
				//index 索引 
				// arry 原始数组
				return items+'aa'
			})
			//--
		</script>
	</body>
</html>
